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- To: proaudio@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [proaudio] problem at boot with rt-sources
- From: Dominique Michel <dominique.michel@xxxxxxxxxxxx>
- Date: Sat, 15 Jul 2006 23:45:45 +0200
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Le Sat, 15 Jul 2006 22:49:08 +0200 (CEST),
"Dubphil" <dubphil@xxxxxxx> a écrit :
>
> second pain and bad news : realtime-lsm is no longer compatible with the
> 2.6.17-rt7 Kernel :(
>
> gentoodaw dubphil # modprobe realtime
> FATAL: Error inserting realtime
> (/lib/modules/2.6.17-rt7/extra/realtime.ko): Invalid module format
It is strange, but i know at the devlopment of Ingo Molnar's patch is going very fast and at bug can append. Maybe at you have to wait until the -rt8 version is out.
Did you see any error messages after running "make modules_install"? It will not arm if you run it one more time.
Stranges problems can append if you do more as one compilation of the same kernel, and you have old modules lying around in /lib/modules. It is best to remove completly /lib/module/<uname -r>/ before running "make modules_install" if you are not sure.
>
> So I have to configure RT-Limit :
>
> gentoodaw dubphil # equery which pam
> /usr/local/portage/proaudio/sys-libs/pam/pam-0.78-r6.ebuild
>
> pam-0.78-r6 is enough uptodate to use RT-limit with pam ?
> I have followed the howto :
> http://proaudio.tuxfamily.org/wiki/index.php?title=Howto_RT_Kernel#Kernel_configuration
>
> but jackd doesn't want to start.
>
> cannot use real-time scheduling (FIFO at priority 10) [for thread 16384,
> from thread 16384] (1: Operation not permitted)
> cannot create engine
>
> anyone succeeded with pam and RT-limit ?
You have the right version. You must be in the audio group and
modify /etc/security/limits.conf as suggested in the Howto.
I added a comment today in the howto. It is about pam-rlimits and the realtime-lsm,
and I just corrected it (pam version was not clear).
http://proaudio.tuxfamily.org/wiki/index.php?title=Howto_RT_Kernel#Realtime-lsm_and_PAM-Rlimits
I tryied both on a 2.6.16 kernel, and both was working.
But maybe at you have another problem with the kernel.
Ciao,
Dominique
>
> Best
>
> Philippe
>
>